Ken
My home made box made a few years back has the tube to negative distance of 3" . The distance beteen tubes is 0.5". My box is somewhat different as the tubes point down and I have bottom mounted on sliders (like drawers in a desk). The negative/glass part slides out. If you are interested I can send off line pics.
Marek > Date: Sat, 21 Feb 2009 11:15:14 -0700 > From: photo1@telusplanet.net > Subject: UV light box construction > To: alt-photo-process-l@usask.ca > > Hi all... > > I am now in possession of a sheet of baltic birch, 12 BL tubes, > ballasts and > the correct number of 'tombstones' and am almost at what one might call > the 'final, too-late-to-change design' stage. > > I plan on having the lamps on one 'surface' of the birch 'plate' and > the ballasts on > the upper. I have planned to have this "rack" sitting on a 1 inch > support around > the interior of the box to facilitate easy access when (and if) any > of the parts need > changing. > > Before I commit the sheet of plywood to the table saw, I have to > believe that some > users may have found there to be an optimum distance between the > lamps, along > with the distance from the lamps to the top of the print frame. > > Practical advice would be very much appreciated. > > > Ken > > > > Quando omni flunkus moritati (Red Green's Possum Lodge) >